It's an amazing technical accomplishment, but before you get your hopes
up that we've found alien civilization, you should know that the planet
is not habitable:

The new Spitzer observations revealed that the star-facing side
of 55 Cancri e is extremely hot, with temperatures reaching up to 3,140
degrees Fahrenheit (1,726 degrees Celsius). The planet is likely a dark
world that lacks the substantial atmosphere needed to warm its nighttime
side, researchers said.

And to top it all off, the planet is oozing.

Past observations of the planet by the Spitzer Space Telescope
have suggested that one-fifth of 55 Cancri e is made up of lighter elements,
including water. But the extreme temperatures and pressures on 55 Cancri
e would create what scientists call a "supercritical fluid"
state.